To Interface Digital -to-Analog converter to 8085 using 8255 and
... equipment such as computer-based systems are able to translate digital data into real-world signals that are more understandable to or useable by humans, such as music, speech, pictures, video. It also allows digital control of machines, equipment, household appliances. When data is in binary form, ...
... equipment such as computer-based systems are able to translate digital data into real-world signals that are more understandable to or useable by humans, such as music, speech, pictures, video. It also allows digital control of machines, equipment, household appliances. When data is in binary form, ...
Crown International, Inc. 1 Xs1200 Circuit Description and Service
... TR3 and TR4 as well as TR5 and TR6. The buffered outputs push-pull drive the primary of the ‘Pulse’ transformer TX6. R42 is a damping resistor used to minimize ringing caused by imperfections in TX6. The transformer has two secondaries, each driving one IGBT in anti-phase. The turns ratio is 1.5:1 ...
... TR3 and TR4 as well as TR5 and TR6. The buffered outputs push-pull drive the primary of the ‘Pulse’ transformer TX6. R42 is a damping resistor used to minimize ringing caused by imperfections in TX6. The transformer has two secondaries, each driving one IGBT in anti-phase. The turns ratio is 1.5:1 ...
LED Driver - Ece.umd.edu
... voltage is left open, R11 biases the transistor to sink about 50 mA from the diode – a bright signal that can be used to verify the functionality of either the LED driver or the photodiode. Under normal operation, it does not draw extra power, and it does not decrease the input impedance by much, as ...
... voltage is left open, R11 biases the transistor to sink about 50 mA from the diode – a bright signal that can be used to verify the functionality of either the LED driver or the photodiode. Under normal operation, it does not draw extra power, and it does not decrease the input impedance by much, as ...
MAX8622 Fast-Charge-Time Xenon Flash Charger for Digital Still Cameras and Camera Phones
... to secondary energy transfer. Since the leakage inductance does not find a path for the current built up during the switch on-time, it results in voltage spikes and ringing at the drain of the MAX8622 power switch (LX), when it turns off. The MAX8622 internal switch is designed to be robust to withs ...
... to secondary energy transfer. Since the leakage inductance does not find a path for the current built up during the switch on-time, it results in voltage spikes and ringing at the drain of the MAX8622 power switch (LX), when it turns off. The MAX8622 internal switch is designed to be robust to withs ...
Transmitter and Receiver Circuit Design
... requires the frequency of the laser emitter to be more than 1 GHz. A wavelength of 850nm is also required for the multi-mode fibre. The slope efficiency, as defined by Honeywell, is the ratio of the output power wattage to the input current. A higher slope would correspond to a higher emission of li ...
... requires the frequency of the laser emitter to be more than 1 GHz. A wavelength of 850nm is also required for the multi-mode fibre. The slope efficiency, as defined by Honeywell, is the ratio of the output power wattage to the input current. A higher slope would correspond to a higher emission of li ...
AP Physics C 5th 6 Wks Take Home AP Exam Questions 1991
... 4. [1995E2]. A parallel-plate capacitor is made from two sheets of metal, each with an area of 1.0 square meter, separated by a sheet of plastic 1.0 millimeter (10 -3 m) thick, as shown above. The capacitance is measured to be 0.05 microfarad (5 x 10-8 F) . a. What is the dielectric constant of the ...
... 4. [1995E2]. A parallel-plate capacitor is made from two sheets of metal, each with an area of 1.0 square meter, separated by a sheet of plastic 1.0 millimeter (10 -3 m) thick, as shown above. The capacitance is measured to be 0.05 microfarad (5 x 10-8 F) . a. What is the dielectric constant of the ...
A summary handout of electrical and pneumatic component symbols
... Examples include: adjusting lamp brightness, adjusting motor speed, and adjusting the rate of flow of charge into a capacitor in a timing circuit. ...
... Examples include: adjusting lamp brightness, adjusting motor speed, and adjusting the rate of flow of charge into a capacitor in a timing circuit. ...
Evaluates: MAX8808X/MAX8808Y/MAX8808Z MAX8808 Evaluation Kit General Description Features
... charging when the input voltage exceeds the overvoltage-protection threshold of 7V or when the input voltage minus the battery voltage is less than 40mV. ...
... charging when the input voltage exceeds the overvoltage-protection threshold of 7V or when the input voltage minus the battery voltage is less than 40mV. ...
Precision Adjustable Shunt Regulator
... The second gain stage is the transconductance (gm) amplifier. The gm amplifier is designed with a known linear 140mS of transconductance. The voltage gain is consequently gm • Ro, where Ro is the output impedance at the collector pin. The frequency response of the transconductance amplifier is contr ...
... The second gain stage is the transconductance (gm) amplifier. The gm amplifier is designed with a known linear 140mS of transconductance. The voltage gain is consequently gm • Ro, where Ro is the output impedance at the collector pin. The frequency response of the transconductance amplifier is contr ...
Grid Connect Inverters NUER 19
... for high efficiency and fast switching. It switches electric power in many modern appliances: electric cars, variable speed refrigerators, air-conditioners, and even stereo systems with digital amplifiers. Since it is designed to rapidly turn on and off, amplifiers that use it often synthesize compl ...
... for high efficiency and fast switching. It switches electric power in many modern appliances: electric cars, variable speed refrigerators, air-conditioners, and even stereo systems with digital amplifiers. Since it is designed to rapidly turn on and off, amplifiers that use it often synthesize compl ...
DATASHEET SEARCH SITE | WWW.ALLDATASHEET.COM
... driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols t ...
... driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols t ...
6 The Amplifier Experiment 6.1
... For this lab, we’ll be making extensive use of the oscilloscope, so you might want to review the previous lab where we learned how to use it. It would be good to review voltage, too. There aren’t many references to amplifiers in introductory texts, as it not is typically covered. However, we are lea ...
... For this lab, we’ll be making extensive use of the oscilloscope, so you might want to review the previous lab where we learned how to use it. It would be good to review voltage, too. There aren’t many references to amplifiers in introductory texts, as it not is typically covered. However, we are lea ...
DM7446A DM5447A DM7447A BCD to 7
... driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols t ...
... driving common-anode LEDs or incandescent indicators directly. All of the circuits have full ripple-blanking input/output controls and a lamp test input. Segment identification and resultant displays are shown on a following page. Display patterns for BCD input counts above nine are unique symbols t ...
Resistance in the Electrical System
... 18. What rules must a technician follow for series circuit? 1. Total resistance = sum of individual resistors 2. Current through each resistor is the same as the current through the whole circuit 3. Sum of each of the voltages across the resistors equal the voltage of the battery ...
... 18. What rules must a technician follow for series circuit? 1. Total resistance = sum of individual resistors 2. Current through each resistor is the same as the current through the whole circuit 3. Sum of each of the voltages across the resistors equal the voltage of the battery ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.